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#!/bin/bash
# LibreChRoot
# Enters a chroot
# Copyright 2010 Nicolás Reynolds
# Copyright 2011 Joshua Haase
# Copyright 2012 Luke Shumaker
# ---------- GNU General Public License 3 ----------
# This file is part of Parabola.
# Parabola is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# Parabola is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with Parabola. If not, see <http://www.gnu.org/licenses/>.
. /etc/libretools.conf
cmd=${0##*/}
clean_chroot() { # Clean packages with pacman
msg "Cleaning chroot with pacman: ${chroot_path}"
cp -a "$(dirname $0)/chcleanup" "${chroot_path}/clean"
mkarchroot -r "cd /build; /clean" "${chroot_path}"
#mkarchroot "${chroot_path}" base base-devel sudo "${CHROOTEXTRAPKG[@]}"
}
clean_repo() {
msg "Cleaning repo for chroot: ${chroot_path}"
if [ -d "${chroot_path}/repo" ]; then
find "${chroot_path}/repo/" -mindepth 1 -delete
else
mkdir -p "${chroot_path}/repo"
fi
bsdtar -czf "${chroot_path}/repo/repo.db.tar.gz" -T /dev/null
ln -s "repo.db.tar.gz" "${chroot_path}/repo/repo.db"
}
update() {
msg "Updating chroot: ${chroot_path}"
mkarchroot -u "${chroot_path}"
}
enter() {
msg "Entering chroot: ${chroot_path}"
mkarchroot -r "bash" "${chroot_path}"
}
usage() {
echo "Usage: $cmd [OPTIONS] [CHROOT]"
echo 'Interacts with a chroot.'
echo ''
echo "The default CHROOT is \`${CHROOT}'."
echo ''
echo 'Options:'
echo ' Settings:'
echo " -d <CHROOTDIR> Use this dir instead of \`${CHROOTDIR}'"
echo ' -l <copy> Use this as the chroot copy instead of basing it'
echo ' on the username'
echo ' Modes:'
echo ' -h Show this message'
echo ' -c Clean the chroot using pacman'
echo ' -r Clean /repo in the chroot'
echo ' -u Update the chroot'
}
main() {
# The logic for setting CHROOTCOPY is mirred from makechrootpkg
CHROOTCOPY=$USER
[[ -n $SUDO_USER ]] && CHROOTCOPY=$SUDO_USER
[[ -z $CHROOTCOPY || $CHROOTCOPY = root ]] && CHROOTCOPY=copy
local mode=enter
while getopts 'hrcud:l:' arg; do
case $arg in
d) CHROOTDIR=$OPTARG;;
l) CHROOTCOPY=$OPTARG;;
c) mode=clean_chroot;;
r) mode=clean_repo;;
u) mode=update;;
h) usage; exit 0;;
*) usage; exit 1;;
esac
done
shift $(($OPTIND - 1))
case $# in
0) :;;
1) CHROOT="$1";;
*) usage; exit 1;;
esac
# not local
chroot_path="${CHROOTDIR}/${CHROOT}/${CHROOTCOPY}"
if (( EUID )); then
error "This script must be run as root."
exit 1
fi
case "$mode" in
clean_chroot) clean_chroot; exit $?;;
clean_repo) clean_repo; exit $?;;
update) update; exit $?;;
enter) enter; exit $?;;
esac
}
main "$@"
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